US20080015467A1 Active / In Force US ⏱️ 0.7 years remaining

Apparatus and Method to Access the Bone Marrow for Oncology and Stem Cell Applications

Assignee: Teleflex Life Sciences Ltd

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Filing: 2007-07-23

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Granted: —

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Expires: 2027-07-23

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Abstract

Abstract An apparatus for removing portions of bone marrow from a bone is provided. The apparatus includes a housing and a hollow drive shaft operable to engage a gear assembly. The hollow drive shaft includes a first end operable to penetrate the bone and a second end operable to allow retrieval of portions of bone and bone marrow. The apparatus also includes a removable trocar. The removable trocar includes an inner channel operable to convey portions of bone and bone marrow. The gear assembly is able to engage and rotate the hollow drive shaft. A motor operable to drive the hollow drive shaft into the bone marrow by rotation of the hollow drive shaft and a power supply and associated circuitry operable to power the motor are also included.

Inventors

👤 Larry Miller

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-10-23 05:17

CPC Classifications

A; A61; A61B; A61B10/00; A61B10/02; A61B10/0233; A61B10/025; A61B10/0283; A61B17/00; A61B17/16; A61B17/1613; A61B17/1615; A61B17/1617; A61B17/1622; A61B17/1662; A61B17/1671; A61B17/32; A61B17/320016; A61B17/32002; A61B17/3205; A61B17/32053; A61B17/34; A61B17/3417; A61B17/3421; A61B17/3423; A61B17/3472; A61B17/3476; A61B17/3494; A61B17/3496; A61M; A61M5/00; A61M5/14; A61M5/158; A61B17/1637; A61B2010/0208; A61B2010/0258; A61B2017/00367; A61B2017/00398; A61B2017/0046; A61B2017/00681; A61B2017/00734; A61B2017/320024; A61B17/3403; A61B2017/3405; A61B50/00; A61B50/30; A61B2050/3008; A61B90/00; A61B90/03; A61B2090/033; A61B2090/034; A61B90/08; A61B2090/0813; A61B2217/00; A61B2217/002; A61B2217/005; A61B50/33; A61B90/10; A61B90/11; A61B90/70; A61M1/00; A61M1/84; A61M2005/1581; A61M2005/1585; A61M2210/00; A61M2210/02

Claims Analysis

Total Claims: 25

Claim 1

Independent Claim 94 words

1 . A method for performing a bone marrow biopsy using a hollow drive shaft having an inner channel with a removable trocar disposed in the inner channel comprising: inserting a first end of the hollow drive shaft and a first end of the trocar into a bone and associated bone marrow using a powered apparatus; removing the trocar from the inner channel of the hollow drive shaft; applying suction to the inner channel of the hollow drive shaft; and retrieving portions of bone marrow from the inner channel of the hollow drive shaft.

Claim 2

Dependent Claim 94 words

Claim 3

Dependent Claim 68 words

2 . The method of claim 1 further comprising: connecting a second end of the hollow drive shaft to a suction swivel apparatus; attaching one end of a suction tube with the suction swivel apparatus; and attaching another end of the suction tube with a receptacle interposed between the suction tube and a source of suction such that a bone marrow specimen may be retrieved into the receptacle.

Claim 4

Dependent Claim 29 words

3 . The method of claim 1 further comprising removing the hollow drive shaft from a housing containing the hollow drive shaft after use of the hollow drive shaft.

Claim 5

Dependent Claim 107 words

4 . A method of performing a bone marrow biopsy using a hollow drive shaft having an inner channel operable to receive an inner trocar having a split-needle configuration within the inner channel comprising: inserting a first end of the hollow drive shaft into a bone and associated bone marrow using a powered apparatus; advancing the inner trocar having the split-needle configuration past the first end of the hollow drive shaft to open the inner trocar and insert the inner trocar into the associated bone marrow; and closing the inner trocar to retain a bone marrow specimen as the inner trocar is withdrawn from the inner channel.

Claim 6

Dependent Claim 107 words

Claim 7

Dependent Claim 21 words

5 . The method of claim 4 further comprising moving the inner trocar between an open position and a closed position.

Claim 8

Dependent Claim 154 words

6 . A method of harvesting bone marrow for transplantation using a hollow drive shaft having an inner channel with a removable trocar disposed in the inner channel comprising: inserting the hollow drive shaft and the removable trocar into a bone and associated bone marrow using a powered apparatus coupled with the hollow drive shaft; removing the removable trocar from the inner channel of the hollow drive shaft; applying suction to the inner channel of the hollow drive shaft and retrieving portions of the associated bone marrow; replacing the trocar into the hollow drive shaft; changing the site of harvest within the bone and associated bone marrow; and repeating the steps of removing the trocar from the hollow drive shaft and applying suction to the inner channel of the hollow drive shaft to retrieve portions of the associated bone marrow until a sufficient quantity of bone marrow has been harvested for bone marrow transplantation.

Claim 9

Dependent Claim 154 words

Claim 10

Dependent Claim 42 words

7 . The method of claim 6 the step of inserting the hollow drive shaft and the trocar into the bone and associated bone marrow further comprises using a motor engaged to a gear assembly operable to rotate the hollow drive shaft.

Claim 11

Dependent Claim 35 words

8 . The method of claim 6 further comprising removing the hollow drive shaft from a housing containing the hollow drive shaft after inserting the hollow drive shaft into the bone and associated bone marrow.

Claim 12

Dependent Claim 92 words

9 . A method for performing a bone marrow biopsy using a hollow drive shaft having an inner channel with a trocar disposed in the inner channel comprising: inserting the hollow drive shaft and the trocar into a bone and associated bone marrow using a powered apparatus; attaching a suction apparatus to a suction port attached to one end of the trocar extending from the hollow drive shaft; applying suction to the trocar; and retrieving portions of the associated bone marrow from the inner channel of the trocar using the suction apparatus.

Claim 13

Dependent Claim 92 words

Claim 14

Dependent Claim 46 words

10 . The method of claim 9 further comprising: changing the location in the associated bone marrow where sampling occurs using an operating mechanism attached to the trocar; and aligning a sample port in the trocar with a sample port formed in the hollow drive shaft.

Claim 15

Dependent Claim 57 words

11 . The method of claim 9 wherein the step of inserting the hollow drive shaft and the trocar into the bone and associated bone marrow further comprises using a suction swivel apparatus that allows attaching a suction tube to the suction port to remain attached while drilling into the bone marrow without twisting the suction tube.

Claim 16

Dependent Claim 25 words

12 . The method of claim 9 further comprising selecting portions of the associated bone marrow for removal by limiting longitudinal movement of the trocar.

Claim 17

Dependent Claim 37 words

13 . The method of claim 12 wherein the step of selecting portions of the bone marrow for removal further comprises using a ratcheted gear operable to control the depth of sampling from the associated bone marrow.

Claim 18

Dependent Claim 48 words

14 . The method of claim 9 further comprising: changing the location in the associated bone marrow where sampling occurs using an operating mechanism attached to the trocar; and aligning a sample port of the trocar with one of three sample ports formed in the hollow drive shaft.

Claim 19

Dependent Claim 100 words

15 . A method for performing a bone marrow biopsy using a hollow drive shaft having an inner channel with a removable removable trocar disposed in the inner channel comprising: inserting the hollow drive shaft and the removable trocar into a bone and associated bone marrow using a powered apparatus; attaching a suction apparatus to a suction port attached to one end of the removable trocar extending from the hollow drive shaft; applying suction to the removable trocar using the suction apparatus; and retrieving portions of bone marrow from the inner channel of the removable trocar using the suction apparatus.

Claim 20

Dependent Claim 100 words

Claim 21

Dependent Claim 48 words

16 . The method of claim 15 further comprising: changing the location in the associated bone marrow where sampling occurs using an operating mechanism attached to the removable trocar; and aligning a sample port in the removable trocar with a sample port formed in the hollow drive shaft.

Claim 22

Dependent Claim 55 words

17 . The method of claim 15 wherein the step of inserting the hollow drive shaft and the removable trocar into the bone further comprises using a suction swivel apparatus that allows a suction tube attached to the suction port to remain attached while drilling into the associated bone marrow without twisting the suction tube.

Claim 23

Dependent Claim 25 words

18 . The method of claim 15 further comprising selecting portions of the bone marrow for removal by limiting longitudinal movement of the removable trocar.

Claim 24

Dependent Claim 38 words

19 . The method of claim 18 wherein the step of selecting portions of the associated bone marrow for removal further comprises using a ratcheted gear operable to control the location of sampling from the associated bone marrow.

Claim 25

Dependent Claim 48 words

20 . The method of claim 15 further comprising: changing the location in the associated bone marrow where sampling occurs using an operating mechanism attached to the trocar; and aligning a sample port of the trocar with one of three sample ports formed in the hollow drive shaft.

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